Here is the pic sorry took so long. I looked all around the differential and could only see the seam wet with oil.
http://i793.photobucket.com/albums/y...-34-10_487.jpg
This is a pic of where the transmission mounts to the back of the motor. I recently fixed the valley pan gasket, so I think the fluid residue here is going to dissapate over time.
http://i793.photobucket.com/albums/y...-34-40_392.jpg